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Appendix B
3
The Nios development board can always be restored to its factory-
programmed configuration. To restore the factory configuration, you
must reprogram the flash memory on the Nios development board.
Reprogramming the flash memory requires the following:
■ A Nios processor hardware design configured in the Cyclone device
and executing the GERMS monitor.
■ The factory flash image for GERMS to program into the flash
memory.
Configuring the
Cyclone Device
With the above mentioned requirements, perform the following steps:
1. Connect the Nios development board to the host computer using the
ByteBlasterII download cable.
2. Launch the Quartus II software and open the Programmer window
(Tools menu).
3. Click Add File... and select the following configuration file:
<Nios Development Kit <install directory>/examples/
recovery_configuration_cyclone_1c20.sof
4. In the Programmer window, check the Program/Configure box, and
click Start to download the hardware configuration.
5. After configuration completes, hold down SW0, press and release
SW8 and then release SW0.
The Cyclone device is configured with a Nios processor hardware design
executing the GERMS monitor. At this stage, DO NOT push the Force Safe
or Reset, Config buttons, because it will reset the Cyclone configuration.
f
See the Nios Hardware Development Tutorial for a detailed description of
configuring the Cyclone device using the Quartus II software.
Appendix B: Restore the
Factory Configuration
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